Patents by Inventor Kaplan LEONID

Kaplan LEONID has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PIXEL CIRCUIT, DISPLAY DEVICE USING THE SAME, AND DISPLAY DEVICE DRIVING METHOD
    Publication number: 20150015563
    Abstract: A pixel circuit includes: an organic light emitting diode (“OLED”); a threshold circuit which generates an output signal based on an input signal, where the threshold circuit has a hysteresis characteristic with respect to the input signal; a first transistor including a first electrode connected to a data line, a second electrode connected to an input terminal of the threshold circuit, and a gate electrode connected to a scan line; and a second transistor including a first electrode connected to a first power, a second electrode connected to an anode of the organic light emitting diode, and a gate electrode connected to an output terminal of the threshold circuit, where the second transistor controls a current amount that flows to the organic light emitting diode from the first power based on the output signal of the threshold circuit.
    Type: Application
    Filed: April 18, 2014
    Publication date: January 15, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kaplan LEONID, Heung-Yeol NA, Baek-Woon LEE, Won-Sik HYUN, Jae-Hoon LEE